acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

Piston Ring, Engine|Testing and Inspection > < Piston, Engine|Removal|Page 1928
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Piston Ring: Specifications

DIMENSIONS 

End-Gap:

Top Ring

Standard (New) ..............................................................................................................................................  0.20 - 0.30 mm (0.008- 0.012 inch)
Service Limit .......................................................................................................................................................................  0.50 mm (0.020 inch)

Second Ring

Standard (New) ..............................................................................................................................................  0.35 - 0.50 mm (0.014- 0.020 inch)
Service Limit .........................................................................................................................................................................  0.75 mm (0.03 inch)

Oil Ring

Standard (New) .............................................................................................................................................  0.20 - 0.70 mm (0.008 - 0.028 inch)
Service Limit .......................................................................................................................................................................  0.80 mm (0.031 inch)

Ring-To-Groove Clearance:

Top Ring Clearance

Standard (New) .....................................................................................................................................  0.035 - 0.065 mm (0.0014 - 0.0026 inch)
Service Limit .......................................................................................................................................................................  0.13 mm (0.005 inch)

Second Ring Clearance

Standard (New) .....................................................................................................................................  0.030 - 0.060 mm (0.0012 - 0.0024 inch)
Service Limit .......................................................................................................................................................................  0.13 mm (0.005 inch)

Piston Ring, Engine|Testing and Inspection > < Piston, Engine|Removal|Page 1928